Hi and thanks for the query, Severe pain accompanied by a discharge deserves an obstetric assessment. Its of utmost importance that its not a bleeding and that the cervix is closed. A clinical evaluation shall be important precising the mode of onset, accompanying signs and symptoms and asking for other laboratory tests. A clinical evaluation shall orient whether its a normal discharge, different from old blood, a vaginal swab and culture can be useful to diagnose any germs growing. W urine analysis is important to rule out a urinary tract infection, coupled with and obstetric ultrasound to ascertain the integrity of the fetus. I suggest you book an appointment with your obstetrician for a complete assessment. thanks and best regards, Luchuo, MD.